Wing Dry Bay Sizing for Uncontrolled Fire Minimization Due to Uncontained Engine Failure
Uncontrolled fire could be resulted from uncontained engine rotor failures if fuel tanks located over engine are in the impact areas of rotor burst. Airworthiness regulations CCAR/FAR/CS 23, 25 require wing dry bay or additional shielding for the fuel tank and the acceptable drip clearance should be less than 10 inches from the envelope of nacelle. The paper provides a case study of the wing dry bay design to meet the requirement of minimizing uncontrolled fire due to the uncontained rotor burst. Based on the dry bay sizing schematic drawing in the AC20-128A, the design method of the wing dry bay is presented for a virtual civil aircraft by CATIA tool. There are seven steps to solve the minimum dry bay with detailed approach description and creation figure for each step. Then the eight step of creating wing dry bay for the virtual airplane is proposed referring to the similar civil airplanes. Besides, the tradeoff considerations of the dry bay design in the preliminary design phase are mentioned in the discussion. The method is to complete the method in AC20-128A for the applicants as a practicable guidance on wing dry bay design.
uncontained engine failure rotor burst airworthiness regulations wing dry bay
Fu Yanyan Liu Lei Tai Zhongtian Qiu Hongbo
The First Aircraft Institute, Aviation Industry Corporation,PO Box 72-307, Xian 710089, China The First Aircraft Institute, Aviation Industry Corporation, PO Box 72-307, Xian 710089, China
国际会议
2011年亚太航空航天技术学术会议(APISAT 2011)
澳大利亚
英文
1-9
2011-02-28（万方平台首次上网日期，不代表论文的发表时间）